Title

Formation of Molecular Hydrogen on Analogues of Interstellar Dust Grains: Experiments and Modelling

Author(s)/Creator(s)

Gianfranco Vidali, Department of Physics, Syracuse University, Syracuse, NY
Joe Roser, Syracuse University

Document Type

Article

Date

4-25-2005

Keywords

TBD

Language

English

Disciplines

Physics

Description/Abstract

Molecular hydrogen has an important role in the early stages of star formation as well as in the production of many other molecules that have been detected in the interstellar medium. In this review we show that it is now possible to study the formation of molecular hydrogen in simulated astrophysical environments. Since the formation of molecular hydrogen is believed to take place on dust grains, we show that surface science techniques such as thermal desorption and time-of-flight can be used to measure the recombination efficiency, the kinetics of reaction and the dynamics of desorption. The analysis of the experimental results using rate equations gives useful insight on the mechanisms of reaction and yields values of parameters that are used in theoretical models of interstellar cloud chemistry.

Additional Information

23 pages, 7 figs. Published in the J. Phys.: Conf. Ser More information at http://arxiv.org/abs/astro-ph/0504543

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Recommended Citation

Vidali, Gianfranco and Roser, Joe, "Formation of Molecular Hydrogen on Analogues of Interstellar Dust Grains: Experiments and Modelling" (2005). Physics - All Scholarship. 507.
https://surface.syr.edu/phy/507

Source

Harvested from Arxiv.org

Creative Commons License

This work is licensed under a Creative Commons Attribution 3.0 License.